What is an Air to Water Heat Pump?

An air to water heat pump extracts heat energy from the outside air and transfers it into water. That heated water is then circulated through:

• Underfloor heating pipes

• Radiator Heating

• Towel rails

• Hot water cylinders (in some systems)

This creates a complete central heating solution that is efficient, quiet, and comfortable. Unlike traditional electric or gas heating, air-to-water systems use renewable energy from the air — making them significantly more energy-efficient.

Why choose a Heat Pump for your Central Heating?

Energy Efficient Heating
Air to water heat pumps can produce multiple units of heat for every unit of electricity used. This means lower power bills compared to traditional heating systems.

Even, Comfortable Warmth
Hydronic heating provides gentle radiant heat rather than blowing hot air. No cold spots. No dry air.

Ideal for South Island Homes
These systems perform well in colder climates and are designed to handle frosty Southland winters.

Perfect for New Builds & Renovations
Heat pumps are ideal as the primary heat source for:

• Underfloor heating systems

• Radiator heating systems

• Whole-home central heating

Designed for Underfloor & Radiator Heating

At Corestone Plumbing & Heating, we don’t install standard wall-mounted heat pumps. We specialise in hydronic heating systems.

Our air-to-water heat pumps are specifically designed to work with:

• Underfloor heating
• Radiator heating
• Multi-zone systems
• Smart thermostat control

This creates a fully integrated central heating system for your home.

Is an Air to Water Heat Pump right for your home?

An air-to-water system is ideal if you:

• Are building a new home

• Want whole-home heating

• Prefer energy-efficient solutions

• Want a long-term heating investment

• Are installing underfloor heating or radiators

We assess your home size, insulation levels, and heating requirements to design the perfect system for your property.